> ## Documentation Index > Fetch the complete documentation index at: /llms.txt > Use this file to discover all available pages before exploring further. # Word-Sweep Highlight > A sentence whose word-by-word emphasis is driven by a single scalar — tween it to sync the highlight with a voiceover # Word-Sweep Highlight A sentence whose word-by-word emphasis is driven by a single scalar — tween it to sync the highlight with a voiceover **Word-Sweep Highlight** ```html mk-callout-highlight.html

``` Copy npx hyperframes add mk-callout-highlight to the clipboard That writes one file: `compositions/mk-callout-highlight.html`. ## Add it to your video It runs for 8 seconds at 1920×1080. Paste this into your composition: ```html index.html

``` Move it in time with `data-start`. Put it on a different timeline row with `data-track-index`. See [data attributes](/concepts/data-attributes.md) for the rest. {/* hf:generated-footer */} Tagged `typography` `karaoke` `captions` `minimal`. ## Related topics * [Browse the complete Catalog](/catalog.md) * [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks.md) * [Put blocks together into one video](/concepts/compositions.md)